An advertising display

Abstract

An advertisement display board relates to the technical field of billboards, which comprises a mounting seat, a supporting column fixedly connected to the mounting seat, a mounting frame and an advertisement display board installed on the supporting column, the supporting column comprises a solid inner supporting column and an outer protective shell coaxially arranged, a wind channel is formed between the solid inner supporting column and the outer protective shell, the advertisement display board further comprises an electrical bin embeddedly and fixedly connected to the upper part of the column body of the solid inner supporting column, and the advertisement display board further comprises a flow guide heat dissipation assembly, the flow guide heat dissipation assembly comprises flow guide fins installed on the surface of the electrical bin and the solid inner supporting column, through the cooperative design of the coaxial wind channel in the supporting column and the spiral flow guide fins, passive heat dissipation is realized. The air inlet at the bottom of the wind channel inhales cold air, after passing through the flow guide fins, the cold air is divided into spiral upward air flow, the air flow path is prolonged, and heat exchange with the surface of the electrical bin is strengthened.

Description

Technical Field

[0001] This application relates to the field of billboard technology, specifically to an advertising display board. Background Technology

[0002] Existing double-sided billboards typically place the electrical compartment inside the metal frame at the back of the billboard. Under the high temperatures of the summer sun, the temperature inside the electrical compartment continues to rise due to its enclosed state. Furthermore, the electrical compartment is only connected to the supporting columns by air insulation or bolts, which prevents heat from being dissipated in time. At the same time, the billboard area lacks passive heat dissipation, making it extremely easy for the electrical compartment to spontaneously combust due to excessively high temperatures.

[0003] Existing technologies generally employ ground-mounted electrical cabinets or forced air cooling solutions, but these result in excessively high cable costs and problems such as dust accumulation on the fans leading to high failure rates. Utility Model Content

[0004] To address the aforementioned technical problems, this application proposes an advertising display board.

[0005] An advertising display board includes a mounting base and a support column fixedly connected to the mounting base. The support column is equipped with a mounting frame and an advertising display panel. The support column includes a solid inner support column and an outer protective shell arranged coaxially, and an annular air duct is formed between the solid inner support column and the outer protective shell.

[0006] Solid inner support columns provide mechanical strength, while the outer protective shell is coaxially aligned with them, forming a ring-shaped air duct. This duct, acting as an airflow path, allows cold air to enter from the bottom and hot air to exit from the top. Utilizing the "chimney effect," the lower density of hot air causes it to rise naturally, creating a continuous airflow. The gap between the solid inner column and the outer shell increases the heat dissipation surface area while preventing overall heat conduction through the support column, thus preventing heat from entering through the billboard frame. Furthermore, the height of billboards is generally over 18 meters and is constantly increasing. The mainstream height of billboards, measured from the road surface, is typically 25 meters, and if measured from the foundation, the height can exceed 30 meters, meeting the height requirements for the chimney effect.

[0007] Furthermore, it also includes an electrical compartment embedded in the upper part of the solid inner support column; the electrical compartment is installed around the solid inner support column, with part of the electrical compartment embedded in the surface of the support column and part of it encroaching into the air duct.

[0008] Furthermore, the electrical compartment includes a mounting cabinet, in which electronic components for driving the lights are installed. The top and bottom surfaces of the electrical compartment are respectively provided with an electrical compartment exhaust port and an electrical compartment air inlet. The electrical compartment exhaust port and electrical compartment air inlet are connected to the mounting cabinet through exhaust channels and air inlet channels provided at the top and bottom of the electrical compartment. The surface of the electrical compartment is provided with a baffle, which divides the air duct into a lower air duct and an upper air duct.

[0009] Airflow enters the duct from the air inlet and moves upward. Due to the obstruction of the baffle, the airflow is prevented from rising further and is forced to enter the mounting cabinet inside the electrical compartment through the air intake channel. Then, it is discharged from the electrical compartment exhaust port through the exhaust channel at the top of the mounting cabinet, enters the upper air duct, and is finally discharged through the exhaust hood at the top of the support column. The airflow can directly exchange heat with the heating elements, improving the overall heat dissipation efficiency.

[0010] Furthermore, it also includes a heat dissipation and airflow guiding assembly, which includes airflow guiding plates installed on the surface of the electrical compartment and the solid inner support column. The airflow guiding plates are tilted upward at an angle of 10°-15° to divide the air duct into a spiral upward airflow path.

[0011] Furthermore, the guide vane includes a first guide vane welded to the surface of the solid inner support column and a second guide vane mounted on the surface of the electrical compartment. The first guide vane adopts a low-density layout with a spacing of 15-20mm to guide the basic airflow.

[0012] Furthermore, the second guide vane adopts a high-density layout with a spacing of 5-8mm to centrally cover the heat source area.

[0013] Furthermore, the first air guide plate has a low-density layout to avoid airflow blockage at the bottom; the second air guide plate adopts a high-density layout for the main heat source electrical compartment, and the airflow is divided by dense air guide plates to form micro vortices, thereby improving local heat dissipation efficiency.

[0014] Furthermore, the spiral airflow path ensures that heat is carried away evenly, improving heat dissipation efficiency compared to a straight airflow path.

[0015] Furthermore, a heat-conducting metal rib is installed at the bottom of the electrical compartment. One end of the heat-conducting metal rib is connected to the bottom of the electrical compartment, and the other end extends to the root area of ​​the second guide plate. The heat-conducting metal rib is embedded in the bottom shell of the electrical installation compartment and extends to the root of the second guide plate to increase the heat conduction area.

[0016] Furthermore, the metal ribs transfer heat from inside the electrical compartment to the surface, and the high-density layout of the second guide vanes further diffuses the heat into the airflow for heat dissipation.

[0017] Furthermore, both the casing of the electrical compartment and the second guide vane are made of thermally conductive materials.

[0018] Furthermore, the surface of the electrical compartment is equipped with cable outlets and maintenance ports. The maintenance ports are fitted with covers of the corresponding shape and are structurally reinforced. The electrical compartment is integrated into the support column, which shortens the external cable path and further reduces costs compared to installing the electrical compartment on the ground.

[0019] Furthermore, an exhaust hood is installed at the top of the support column. The exhaust hood has a conical structure, which expands the outlet, reduces air pressure, and accelerates the discharge of hot air.

[0020] Furthermore, an air inlet is provided at the bottom of the support column, and a rainproof louver is installed at the air inlet. A drainage channel is provided inside the mounting base, and the drainage channel is connected to the air duct. The rainproof louver prevents rainwater from entering while allowing air to flow in; the insect screen prevents insects from clogging the air duct.

[0021] Furthermore, an insect screen can be detachably installed at the air inlet.

[0022] Furthermore, the exhaust hood at the top of the support column can be replaced with a roof ventilator. The turbine blades rotate using natural wind power to actively generate a negative pressure suction effect, enhancing the "chimney effect" and preventing airflow stagnation.

[0023] Cold ambient air enters the duct through the air inlet at the bottom of the support column. External wind pressure or the temperature difference between the inside and outside of the support column creates a pressure difference, propelling the airflow upwards. Within the duct, the airflow is forcibly redirected by guide vanes, forming a spiral upward path. The first guide vane directs the basic spiral flow, while the second guide vane divides the airflow into fine streams, tightly scouring the heat source area.

[0024] The electronic components inside the electrical compartment generate heat, which is transferred to the surface through the heat-conducting shell. The heat-conducting metal ribs further conduct the heat to the root of the second guide vane, and the spiral airflow continuously carries away the heat from the surface of the guide vane.

[0025] Exhaust hood: When hot air reaches the top of the support column, it is diffused and slowed down through the conical hood opening, reducing turbulence resistance and allowing the hot air to be smoothly dispersed into the atmosphere.

[0026] Roof ventilator: Natural wind drives the turbine to rotate, generating a negative pressure suction effect to actively draw in hot air from the duct.

[0027] Compared with the prior art, this application has the following beneficial effects:

[0028] Passive cooling is achieved through the coordinated design of coaxial air ducts and spiral guide vanes within the support column. Cool air is drawn in through the bottom air inlet of the duct, and after passing through guide vanes at an angle of 10°–15°, it is divided into spiraling upward airflow, extending the airflow path and enhancing heat exchange with the electrical compartment surface. Thermally conductive metal ribs rapidly conduct heat from inside the compartment to the base of the guide vanes, where it is continuously carried away by the airflow. The top exhaust hood or turbine ventilator utilizes thermal pressure difference or wind power to accelerate exhaust, reducing the risk of overheating and spontaneous combustion of electrical equipment and lowering operating costs. The embedded integration of the electrical compartment shortens cable length, eliminating the need for forced air cooling equipment and maintenance costs; rainproof louvers, drainage channels, and insect screens provide multiple layers of protection. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A 3D structural diagram of an advertising display board;

[0031] Figure 2 This is a front view of the advertising display board;

[0032] Figure 3 for Figure 2 sectional view of qq;

[0033] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0034] Figure 5 for Figure 3 Enlarged view of section B;

[0035] Figure 6 This is a three-dimensional structural diagram of the advertising display board in Example 3;

[0036] Figure 7 This is a cross-sectional view of the advertising display board in Example 3.

[0037] In the picture:

[0038] 1. Fixed base;

[0039] 2. Support column; 201. Solid inner support column; 202. Outer protective shell; 203. Air duct;

[0040] 5. Mounting bracket;

[0041] 6. Advertising display boards;

[0042] 7. Exhaust hood;

[0043] 8. First air deflector;

[0044] 9. Electrical compartment; 901. Air intake passage; 902. Exhaust passage;

[0045] 10. Second air deflector;

[0046] 11. Roof ventilator;

[0047] 12. Rainproof louvers;

[0048] 13. Air intake;

[0049] 14. Drainage channels;

[0050] 15. Air inlet to the electrical compartment;

[0051] 16. Exhaust vent in the electrical compartment;

[0052] 17. Baffle;

[0053] 18. Inspection port. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0055] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0056] Example 1

[0057] like Figure 3-6 As shown, an advertising display board includes a mounting base 1 and a support column 2 fixedly connected to the mounting base 1. The support column 2 is equipped with a mounting frame 5 and an advertising display panel 6. The support column 2 includes a solid inner support column 201 and an outer protective shell 202 arranged coaxially. An air duct 203 is formed between the solid inner support column 201 and the outer protective shell 202.

[0058] The solid inner support column 201 provides mechanical strength, and the outer protective shell 202 is coaxially arranged with it to form an annular air duct 203. The air duct 203 serves as an airflow path, allowing external cold air to enter from the bottom and hot air to exit from the top. Utilizing the "chimney effect," the low density of hot air causes it to rise naturally, creating a continuous airflow. The gap between the solid inner column and the outer shell increases the heat dissipation surface area while preventing overall heat conduction through the support column, thus preventing heat from entering from the billboard frame.

[0059] It also includes an electrical compartment 9 embedded in the upper part of the column, which is fixed to the solid inner support column 201;

[0060] The electrical compartment 9 includes an installation cabinet. The top and bottom surfaces of the electrical compartment 9 are respectively provided with an electrical compartment exhaust port 16 and an electrical compartment air inlet 15. The electrical compartment exhaust port 16 and the electrical compartment air inlet 15 are connected to the installation cabinet through exhaust channels 902 and air inlet channels 901 provided at the top and bottom of the electrical compartment 9. A baffle 17 is provided on the surface of the electrical compartment 9, which divides the air duct 203 into a lower air duct and an upper air duct.

[0061] Airflow enters the air duct 203 from the air inlet 13 and moves upward. Due to the obstruction of the baffle 17, the airflow is prevented from rising further and is forced to enter the mounting cabinet inside the electrical compartment 9 through the air intake 15 of the electrical compartment via the air intake channel 901. Then, it is discharged from the electrical compartment exhaust port 16 through the exhaust channel 902 at the top of the mounting cabinet, enters the upper air duct, and is finally discharged through the exhaust hood 7 at the top of the support column 2. The airflow can directly exchange heat with the heating element, improving the overall heat dissipation efficiency.

[0062] Example 2

[0063] like Figure 1-6 As shown, an advertising display board also includes a heat dissipation and airflow guiding component. The heat dissipation and airflow guiding component includes airflow guiding plates installed on the surfaces of the electrical compartment 9 and the solid inner support column 201. The airflow guiding plates are inclined upward at an angle of 10°-15° to divide the air duct 203 into a spiral upward airflow path, forcing the airflow to spiral upward and prolonging the residence time of the air in the air duct.

[0064] Mounting base 1 and support column 2 fixedly connected to mounting base 1. Mounting frame 5 and advertising display board 6 are mounted on support column 2. Support column 2 includes a solid inner support column 201 and an outer protective shell 202 arranged coaxially to form a coaxial nested structure. Air duct 203 is formed between solid inner support column 201 and outer protective shell 202.

[0065] It also includes an electrical compartment 9 embedded in the upper part of the solid inner support column 201. The electrical compartment 9 is positioned higher than the air inlet, which facilitates the upward movement of hot air to carry away heat.

[0066] It also includes a heat dissipation and airflow guiding assembly, which includes airflow guiding plates installed on the surfaces of the electrical compartment 9 and the solid inner support column 201. The airflow guiding plates are inclined upward at an angle of 10°-15° to divide the air duct 203 into a spiral upward airflow path.

[0067] The guide vane includes a first guide vane 8 welded to the surface of the solid inner support column 201 and a second guide vane 10 installed on the surface of the electrical compartment 9. The first guide vane 8 adopts a low-density layout with a spacing of 15-20mm to guide the basic airflow.

[0068] The second guide vane 10 adopts a high-density layout with a spacing of 5-8mm to centrally cover the heat source area.

[0069] The first air guide plate 8 has a low-density layout to avoid airflow blockage at the bottom; the second air guide plate 10 has a high-density layout targeting the main heat source electrical compartment 9, and uses dense air guide plates to divide the airflow, forming micro-vortices to improve local heat dissipation efficiency.

[0070] The spiral airflow path ensures that heat is carried away evenly, improving heat dissipation efficiency compared to a straight airflow path.

[0071] The bottom of the electrical compartment 9 is equipped with a heat-conducting metal rib. One end of the heat-conducting metal rib is connected to the bottom of the electrical compartment 9, and the other end extends to the root area of ​​the second guide plate 10.

[0072] The metal ribs transfer heat from the inside of the electrical compartment 9 to the surface, and then the high-density layout of the second guide vane 10 further diffuses the heat into the airflow for heat dissipation.

[0073] The shell of the electrical compartment 9 and the second guide vane 10 are both made of thermally conductive materials.

[0074] The surface of the electrical compartment 9 is provided with a cable outlet and an inspection port 18. The inspection port 18 is fitted with a cover plate corresponding to the shape of the inspection port 18. The electrical compartment 9 is integrated into the support column, which shortens the external cable path and further reduces costs compared to installing the electrical compartment on the ground.

[0075] The top of the support column 2 is equipped with an exhaust hood 7, which has a conical structure to expand the outlet, reduce air pressure, and accelerate the discharge of hot air.

[0076] The support column 2 has an air inlet 13 at its bottom, and a rainproof louver 12 is installed at the air inlet 13. The mounting base 1 has a drainage channel inside, which is connected to the air duct 203. The rainproof louver 12 prevents rainwater from entering while allowing air to flow in; the insect net prevents insects from clogging the air duct.

[0077] An insect-proof net can be detachably installed at the air inlet 13.

[0078] Example 3

[0079] like Figure 1-7 As shown, based on Embodiment 2, the top of the support column 2 can be replaced with the exhaust hood 7 and the roof ventilator 11. The turbine blades rotate using natural wind power to actively generate a negative pressure suction effect, enhance the "chimney effect", and avoid airflow stagnation.

Claims

1. An advertising display board, comprising a mounting base (1) and a support column (2) fixedly connected to the mounting base (1), wherein a mounting frame (5) and an advertising display panel (6) are mounted on the support column (2), characterized in that: The support column (2) includes a solid inner support column (201) and an outer protective shell (202) arranged coaxially, and an air duct (203) is formed between the solid inner support column (201) and the outer protective shell (202); It also includes an electrical compartment (9) on the upper surface of a column embedded in a solid inner support column (201); the electrical compartment (9) includes an installation cabinet, and the top and bottom side surfaces of the electrical compartment (9) are respectively provided with an electrical compartment exhaust port (16) and an electrical compartment air inlet (15). The electrical compartment exhaust port (16) and the electrical compartment air inlet (15) are connected to the installation cabinet through an exhaust channel (902) and an air inlet channel (901) provided at the top and bottom of the electrical compartment (9). A baffle (17) is provided on the surface of the electrical compartment (9), and the baffle (17) divides the air duct (203) into a lower air duct and an upper air duct.

2. An advertising display board according to claim 1, characterized in that: It also includes a heat dissipation and airflow guiding assembly, which includes airflow guiding plates installed on the surfaces of the electrical compartment (9) and the solid inner support column (201), the airflow guiding plates being inclined upward at an angle of 10°-15° to separate the air duct (203).

3. An advertising display board according to claim 2, characterized in that: The guide vane includes a first guide vane (8) welded to the surface of the solid inner support column (201) and a second guide vane (10) installed on the surface of the electrical compartment (9). The first guide vane (8) adopts a low-density layout with a spacing of 15-20 mm, and the second guide vane (10) adopts a high-density layout with a spacing of 5-8 mm.

4. An advertising display board according to claim 2, characterized in that: The bottom of the electrical compartment (9) is equipped with a heat-conducting metal rib. One end of the heat-conducting metal rib is connected to the bottom of the electrical compartment (9), and the other end extends to the root area of ​​the second guide plate (10).

5. An advertising display board according to claim 2, characterized in that: The shell of the electrical compartment (9) and the second guide vane (10) are both made of thermally conductive materials.

6. An advertising display board according to claim 1, characterized in that: The electrical compartment (9) is provided with a cable outlet and an inspection port (18) on its surface, and the inspection port (18) is fitted with a cover plate corresponding to the shape of the inspection port (18).

7. An advertising display board according to any one of claims 1-6, characterized in that: The top of the support column (2) is provided with an exhaust hood (7), the bottom of the support column (2) is provided with an air inlet (13), the air inlet (13) is provided with a rainproof louver (12), the mounting base (1) is provided with a drainage channel, and the drainage channel is connected to the air duct (203).

8. An advertising display board according to claim 7, characterized in that: An insect-proof net can be detachably installed at the air inlet (13).

9. An advertising display board according to claim 7, characterized in that: A roof ventilator (11) is installed on the top of the support column (2).

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